Improvement in brlck-fviachlnes



2SheetsSheet1. D. IRWIN 8|. H. S. LANGDOH.

Brick-Machines.

N0. 141,560. Patented August5,1873.

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1 1 FFICE.

DONALD J. IRI/VIN ANDKHENRY S. LANGDON, OF NOBLE, ILLINOIS.

IMPROVEMENT IN ENGR-MACHINES,

Specification forming part of Letters Patent No. Ill, dated August 5,1873; application filed l June 14, 1873.

To all whom it may concern:

Be it known that we, DONALD J. IRWIN and HENRY S. LANGDON, of Noble, inthe county of Richland and in the State of Illinois, have inventedcertain new and useful Improvements in Brick-Machine; and do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings and to theletters of reference marked thereon making a part of this specification.

The nature of our invention consists in the construction-and arrangementof a brick-machine, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which our inventionappertains to make and use the same, we, will now proceed to describe amachine in which our invention is embodied, referring to the annexeddrawings, in which- Figure l is a plan view, and Fig. 2 a longitudinalsection, of our machine. Figs. 3, 4, 5, 6 are detached views of certainparts of the same.

A represents a longitudinal drum with hopper B at the front end, whichdrum7 with interior devices, forms the mill or mixing apparatus. Thedrum A incloses two series of beaters or mixers, one stationary and theother revolving. The stationary set or series consists of wheels C Chaving curved spiral-shaped arms, as shown in Fig. 5, and the rotatingset consists of similar wheels D D, except that they have no rim. Allthe rotating mixers are attached to a shaft, E, which passes centrallythrough the drumA and through the centers or hubs of the stationarymixers C C, which latter areplaced in and held by grooves in the lowerhalf of the drum A. The last of the rotary mixers D is provided withwings H H, as shown in Fig. l. The office of the mill thus constructedis to grind, temper, and supply material to the molding apparatus, saidmaterial bein g driven,when received at the hopper B, bymeans of theabove-described curved spiral-shaped arms along and through a slot, a',in the rear end of the drum, into the chamber G of the moldingapparatus. The mill is driven by cog-gearing I I1 from a shaft, b, saidShaft with the gear I revolving from right to left, thereby reversingthe motion of the mill,

causing it to revolve from left to right. The chamber G of the moldingapparatus is attached to the rear end of the mill A, and communicateswith the same by means of the slot or throat a. In the chamber G isfitted a plunger or tamp, J, for the purpose of driving the material,when received through the throat a communicating between the mill andchamber,

downward into cases or molds. The plunger or tamp J is itted with a'spring, d, so as to prevent too great pressure, and accommodating itselfto the excess or lack of material received in the chamber, said plungerin its descent lling the mold or case then in position under thechamber, and at the same time closing the slot or throat c through whichthe mud passes into the chamber, and in its ascent leaving said throator slot open so as to admit a supply for the next mold or case. Theplunger J is attached to a cross-bar, K, by perpendicular bars or armsff, which arms arerigidly attached to the cross-bar, and iiexiblyattached to the plunger or held to the same by clutches e e, the ends ofthe spring d bearing against the lower ends of said arms. The crossbarK, with its arms ff, is attached to perpendicular sliding bars L L,which are driven upward and downward by means of eccentrics M M, thuscommunicating a vertically-reciprocating motion to the plunger.V Theeccentrics M M are secured on a shaft, b1, which, by bevelgears I2 I3,are connected with a shaft, b2,

and this shaft, by a gear, I4, receives its motion from the gear I onthe power-shaft b. 71, represents the knife or trimmer, which is 1ocatedat the bottomy of the chamber Gr, and is arranged as follows: The backedge of the knife is attached to and supported by a cross-bar, k, andthe front edge is provided or made with arms or bars e' t', ofsufficient length to reach beyond the chamber Gr when withdrawn, and aresupported in slides or clutches m m. The object of the arms or bars i tis to form a support to the edge of the knife or trimmer, and

at the same time serve as a protection to the ends and partitions of thecases by forming a projection over the same so as to prevent the removalof the sand by the descending mudrr When the knife is withdrawn thefront edge forms a projection over the rear edge of the case so as toprevent disturbing the sand. The

-2 senseo forward side of the chamber G is provided with a cut-off bar,n, which is slotted or grooved, as shown in Fig. 6, so as to be fittedneatly to and rest on the above-mentioned knife bars or arms i t, andwhen the knife is withdrawn forms a projection over that edge of thecase. When the knife is thrown forward said cut-off bar fn, is drivenfrom over the edge of the case by adjustable knockers or bumpers o oattached to the cross-bar k and cut-oi bar n. These bumpers or knockersare so arranged as to allow the edge of the knife and cut-off just totouch withoutreceivingtheforce of the stroke onthe knifeedge. The knifeor trimmer h when thrown forward trims the case, after which the case islowered and removed and an empty case taking its place under thechamber, the knife remaining in such a position as to form for themoment a temporary bottom to the chamberthat is, during the removal ofthe loaded and the adjustment of a new case, and the raising of theplunger or tamp J. These last-described motions being completed theknife is withdrawn. The cross-bar or knife-support 7c is attached tohorizontal slide-bars NN, which are moved at the proper times by theabove-mentioned eccentrics M M. The case-feeder or apparatus foradjusting the cases consists of two horizontal bars, O O, withprojections on their upper edges, and operated by elbow-levers l? androck-shaftp, the levers being suitably connected with the lower ends ofthe verticallyreciprocating slides L L. The elbow-levers P are used soas to obtain a rise and fall of the horizontal bars O O-the rise in theforward motion and the fall in the recoil. rlhe upward motion is for thepurpose of allowing the projections on the bars O O to catch the case,and the fall in the backward movement to avoid interfering with thecases thrown forward in The lled cases are carried out on one side ofthe machine by an endless apron, R.

Having thus fully described our invention,

what we claim as new, and desire to secure by Letters Patent, is-

1. In combination with the horizontal bar 7:, to which the plunger isconnected, the vertical slides L and eccentrics M, substantially as andfor the purposes herein set forth.

2. The knife or trimmerh provided with arms it', substantially as andfor the purposes herein set forth.

3. In combination with the arms t' t 011 the knife h, the clutches mm,for the purposes herein set forth.

4. The' cut-off bar n and knockers or bumpers o o operating incombination with the knife h and its arms ifi, substantially as and forthe purposes herein set forth.

5. The combination, with the knife h and its supporting-bar 7c, of thehorizontal slide-bars N N and eccentrics M M, substantially as and forthe purposes herein set forth.

In testimony that we claim the foregoing we have hereunto set our handsthis 2d day of June, 1873.

D. J. IRVIN. Il. S. LANGDON.

1Witnesses Il. E. ROBERTS, A. M. MoGANDLEss.

